hifi engine

i would appreciate again for service manual of SONY BVM-14G5U or similar

I bought this SONY BVM-14G5U with a problem that it is always stay at stand-by.

it seems something wrong with it control module.

unfortunately, this control module is not as easily accessible as others.

I understand it is very rare as this is a broadcasting not consumer level equipment.

I would appreciate if i could receive a service manual.

many thanks